<template>
    <div class="login_container">
        <div class="login_box">
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <el-form ref="loginFormRef" :rules="loginFormRules" :model="loginForm" class="login_form">
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-yonghu"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" type="password" prefix-icon="iconfont icon-mima"></el-input>
                </el-form-item>
                <el-form-item class="btns">
                    <el-button type="primary" round @click="login">登录</el-button>
                    <el-button type="danger" round @click="resetLoginForm">重置</el-button>
                </el-form-item>   
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            loginForm:{
                username:'admin',
                password:'123456'
            },
            loginFormRules:{
                username:[
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 15, message: '用户名长度在 3 到 15 个字符', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 3, max: 15, message: '密码长度在 3 到 15 个字符', trigger: 'blur' }
                ]
            }
        }
    },
    methods: {
        resetLoginForm(){
            this.$refs.loginFormRef.resetFields()
        },
        login(){
            this.$refs.loginFormRef.validate(async vali=>{
                if(!vali) return this.$message.warning('您的信息不符合格式！请重新输入')
                const { data:res } = await this.$http.post("login",this.loginForm)
                if(res.meta.status !==200) return this.$message.error('用户名不存在')
                this.$message.success('登录成功！')
                window.sessionStorage.setItem('token',res.data.token)
                this.$router.push('/home')
            })
        }
    },
}
</script>

<style lang="less" scoped>
.login_container{
    background-color: pink;
    height: 100%;
    .login_box{
        width:450px;
        height: 300px;
        background-color: #fff;
        border-radius: 5px;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%,-50%);
        .avatar_box{
            position: absolute;
            left: 50%;
            transform: translate(-50%,-60%);
            height: 130px;
            width: 130px;
            border: 10px solid palevioletred;
            border-radius: 50%;
            overflow: hidden;
            img{
                height: 100%;
                width: 100%;
                background-color: yellow;
            }
        }
        .login_form{
            position: absolute;
            bottom: 0;
            width: 100%;
            padding: 0 20px;
            box-sizing: border-box;
            .btns{
                display: flex;
                justify-content: space-around;
            }
        }   
    }
}

</style>